Hoisting and hauling carriage for use on elevated trackways



K. BERGER Nov. 25, 1930.

HOISTING AND HAULING CARRIAGE FOR USE ON ELEVATED TRACKWAYS Filed July 25, 1929 2 Sheets-Sheet i ATTORNEY Now-25, 1930. 1,782,523

HOI$TING AND HAULING ,CARRIAGE FOR USE. on ELEvA'rEb TRAcxwAYs K. BERGER 2 Sheeis-Sh eet 2 Filed July 23 Lax m? ATTORNEY Patented Nov. 25,1930

N TE STATES KNUTEV BERGER, or SEATT E, wAsnfIne roN i noisrmeniv'n HAULiNG CARRIAGE mmseot'et vlm TRAGKWAYS Application filed July 23,

Myinvention relates to improvements in hoistmg and hauling carriages torvuse on elevated trackways and the general object of for operating the mechanismrbywhich the load carryingend of the tong line is lowered.

i ".A furtherspecificobject is to provide apparatus of this nature in which the sheave over which the tong line passes is positively driven-by the slack pulling line and in which means are provided forholding the tong line firmly in engagement ,with the sheave over i which it passes during the time a pull is being exerted onthe slack pulling line, thus insuring that the load carrying end of said tong line will be lowered when the hauling line is slackene'd. T a l Other and more specific objectswill be apparent from. the following description taken in connection with the accompanying draw mgs. ll .[y invention is shown-as applied to a logging carriage adapted to run on an elevated 7 track cable of the form' connnonly termed asky line, said Icarriagehaving theusual hauling line and tong line together with a haul back line andja slack pulling line, but

itwill beLunderstood that the inventionmay be utilized in otherforins offhoisting and hauling apparatus; i In the accompanying drawings Figure 1 is a a sideelevation of a hoisting and hauling carriage constructed a in accordance with my invention showing the tong line sheave lowered into the position it will" occupy at all timesexcept when the slack pulling line is tautand in use. p p V Fig. 2 is a similar view showing the position the tong line sheave will occupy when the slack pulling line is drawn taut and being wound in. Fig. 3 is a sectional viewsubstantially on broken line 3:, 3 ofFig.

link beltshown in Figs. 1 and 2.;

1929. Serial no. 380,330.

.trating the operation of mycarriage.

atlon of a slightly'modi- Fig. 5 is an elev fied form oficarriage in which rollers are" rovided for holdingjthe tong line in engagement With: its: sheave instead of the driven A T F I F 4 isja diagrammatic elevation i F ig; 6 is a side elevation of another modified form of the inventionin which the tong line, and theslack pulling line are both Wound one or more complete turns about sheaves which are rigidly connected with eachother.

Fig.7 is a fragmentary elevationlof parts of the carriage shown in Fig. 6.. l P

Likejreference numerals designate like parts throughout the drawings.

Before describing the specific construction of my carriage I will describebriefiy the arrangement of a well known form of hoisting andhauling system of which it forms. a part and which is the same as the system diagrammatically shown in Fig; 4. Referring to said Fig. 4;, the numeral 7 designates a carriage whichis supported for movement along an elevated track cable 8 and? is arranged to be move d inone directionby a hauling line 10 and inthe opposite direotionby a'haul baclilline ll. The hauling line 10 is connected, at the location of agswivel12, with a tongline 13 which passes over a suitable sheave in the carriage and drops downwardly therefrom;

said tongline usuallybeing provided onits hook or hooks 14, by which it may be attached to a loachas toa log15.' "For the purpose of inafter specifically described and thence outwardly, preferably to the samer'source of power with which theghauling line and'the haul back line Tare connected. This source of power, notsho wn, may be a logging engine located near one endiof the track cable.

downwardly hanging endwith means, asa

With apparatus ofthis nature the hooks 14.

on the lower end of the tong line13 are drawn up against-the carriage whilesaid carriage is i being moved outwardly by the haul back line to a location where a load is to be picked up. W' hen it is desired to lower the load carrying end of the tong line 13 a pull is exerted on the slack pulling line 16 to slacken the tong line for the purpose of allowing the load carrying end of said tong line to descend by gravity. It has been found, however, that often the end of this tong line which carries the books 14; will not drop down but will stay up against the carriage until some action is taken to pull it down or to otherwise assist it in comingdown. This limits the length of the tong line which may be permitted between the swivel and the carriage and further causes much unnecessary trouble and labor and often results in an expensive loss of time for an entire crew. In accordance with my present invention I overcome this objection by providing means whereby the slack pulling line will actually and forcibly lower the load carrying end of the tong lineat the same time it is pulling a slack into said tong line.

In accordance with my invention as disclosed in Figs. 1 to linclusive the carriage 7 is constructed of two side plates 17 and 18 rigidly secured together in parallel spaced apart relation and having two track sheaves 19 and 20 mounted between their upper portions and adapted to run on the track cable 8. A. movable sheave frame 21 is secured by a pivot bolt 23 and another bolt 2% to the lower portion of the carriage frame and has a tong line sheave 25, see Fig. 3, rotatably mounted therein on a bearing pin 26, the.

tong line 13 passing over said sheave The bolt 2 1 passes through a slot 27 in the sheave frame 21. This slot 27 is curved with the bolt 23 as a center and said slot permits a substantial amount of movement of said sheave frame. Disposed directly above the tong line sheave 25 is a link belt 28 in which the links are transversely concave to fit the curvature of the tong line, see Fig. 3, said tong line being adapted to be pressed against said links, as hereinafter described, when the slack pulling line is being wound in. The link belt 28 is mounted on two sprocketwheels 29 and 30, the sprocket wheel 29 being rotatable on the bolt 23 and the sprocket wheel 30 being mounted on a bearing pin or bolt 31 in the frame. The sprocket wheel 29 is integral with, or rigidly secured to, sheaves 32 over one of which the slack pulling line 16 passes, so that when the sheaves 32 are turned by movement of the slack pulling line the sprocket wheel 30 will be turned therewith and the link belt 28 driven. The slack pulling line 16 extends from the swivel 12 over one of two sheaves 33 on the upper portion of the carriage, thence downwardly under and around one of two sheaves 3a which are rigidly connected with the tong line sheave 25 and thence upwardly over one of the two sheaves 32 and outwardly to the source of power. By this arrangement the slack pulling line 16 is caused to drive both the tong line sheave 25 and the link belt 28 and at the same time said slack pulling line is passed under and around the sheave 3 1 that is integral with or rigidly secured to the tong line sheave 25 in such a manner that when tension is exerted on the slack pulling line the frame 21 will be raised and the tong line 13 will be pressed against the driven link belt 28. If the slack pulling line wound in or drawn in the direction indicated by the arrows the tong line will be driven both by the tong line sheave 25 and the link belt 28 and the load carrying end of said tong line will be wound down or lowered.

Sheaves 32 and 33 and 3 1 are preferably in duplicate on both sides of the carriage so that the slack pulling line may be placed on either side of the carriage which may be most convenient, it being understood that only one slack pulling line is ordinarily used. The sheaves 34 and 25 are substantially the same size so that the lines 13 and 16 will move at the same speed.

In the operation of this invention, it is apparent that the slack pulling line and the tong line, being connected with each other by the swivel 12 will ordinarily move at the same speed and in the same direction. When the carriage is being hauled out by the haul back line 11, preparatory to picking up a load, the hooks 14 on the outer end of the tong line 13 will usually be drawn up against the carriage. When it is desired to lower said hooks a pull is exerted on the slack pulling lines 16 tending to draw the swivel 12 toward the carriage. The tightening of the slack pulling line lifts the sheave frame 21 until the tong line 13 on the top of sheave 25 is caused to engage withand press against the link belt 28. Further movement of the slack pulling line 16 drives both the link belt 28 and the tong line sheave 25 in the correct direction to wind down and lower the load carrying end of the tong line.

In Fig. 5, I have dis losed a modification of my invention in which the means for pressing the tong line against the tong line sheave when the slack pulling line is being wound in, is in the nature of two rollers 40 and 41 mounted on pivots 42 within a block 13 which is supported on a fulcrum 4:4: so that the two rollers are self adjusting to the tong line. The other parts of the carriage may be substantially identical with those shown and described in connection with the preceding figures and the method of connection of the same with the track cable 8, the hauling line 10, the tong line 13, the slack pulling line 16, and the haul back line 11 may be substantially the same.

In the operation of this form of the invention, the slack pulling line 16, passes downwa rdly and around the sheave 34; in a manner previously described so that when a pull is carriage having a plurality ofsheaves therefidldn theslack pulling lihe'the tong line sheave will be rotated and, at the same time,

be lifted to bring the tong; line into con-- ftactwith' the rollers tO;andAl which will press the "tong line against the driven tong line sheave thus preventing slippage of the tong line on its sheave" and causing the load down and lowred.

carrying end of said tong, line to be wound movable sheave frame-is used, the slack pulling line will lift; the sheave frame easily of thecarriage. "Inth s form, the tong line l 13 is wound one; ormore turns around the tong line sheave, as lnd cated at 4:7,1n F1g. 7

when no loadis 'car'ried'on the tong line but as soon as a, load is made fast to the lower end of the tong line and a pull exerted there on the sheave-frame will be moved downwardly and the tong line will be clear of the i link belt 28 or other equivalent means even though a tension" is maintained on the slack pulling. line, "This prevents needless friction and-wear of the tong line and sheave.

In Figs-6 and 7,1 have shown another modified form of the invention in which the a pivot or axle 45 of the tong line sheave 46 isnot movable but'is supported in a fixedpart and the slack pullingline 16 is also preferably wound one or more turns about/ its sheave i8 so that neitherof saidlines will; slip on their respective sheaves. When the l slack pulling line is; wound'in the tong line sheave will be rotated and the load carrying end of the tongline will be lowered The foregoing description and accom-' panying drawings clearly disclose a preferred embodiment of my invention but it will be understood that this disclosure is merely illustrative and that such changes in the invention may be made as arefairlywithin the scope and spirit of'the following claims.

Iclaim: v "1. In apparatusof the classdescribed, a

in,"two ofwliich are upon thesamerazgis and are connected-i to rot-atetogether, vertically movable meansfor connectingsaid two lastnamed sheaves to the carriage to permit them to have a rising and falling movement, one

of the other of said sheaves being located in a higher, plane thanthe said last-named two, a hauling line, a tong line leading over one of said connected-together sheaves, a slack pulling linepas sing around the other of said gaged by saidtong linewhen saidconnectech together sheaves are moved toward said means. a y

In all f orms of the inventionrin which V '3. In apparatus of the class described,a carmeansu frameis-lswung upward on its pivot.

QLW'I n-aPparatus of the classldescribed la carriage having a plurality 'oflsheaves there- 1n, two of which are uponthe same axis and are connectedj' to'rotate together; verticallyi V mov able'meansjfor connecting saidtwo lastnamed sheaves tothe carriage to permit them to: have a; rising and falling movement, one

of thebtherbf-said sheaves being located in a higher plane than the said last-named two,

a hauling line," a tonglineleadingoverone of said connected-together sheaves, aislack pull v ing line passing around the other of said. connected-together sheaves and up and around saidfhigher sheave, said two lastnamed lines being connected to the hauling line at a point comparativelynearsaidrarriage, and flexibly mounted "means infsaid carriage in position .tofrictionallly engage said tong line when said connecte together sheaves are moved toward sa1d means.

riage having aplurality of sheaves thereing two of which arejupon the same axis and-are; I connectedto rotate together, vertlcally-movnamed sheaves to the carriage to permitthem 'ablefmeans forjconnectingfsaidlltwolastf dsh to have arising and falling movement, one

of the other of said sheaves being locatedlin a l iigher planethanthe;last-named two, a hauling line, tong line leading over one of said :connectechtogether' sheaves, a slack pulling line passingaroundflthe other of said connected-together sheaves and up and around saidlhigher sheave, said two 1ast+named llnes being connected to thehaulingline at apoint comparatively near saidcarriage, and flexibly ,mouiited meansin said-carriage inlposition tol be frictionally: engaged." with-xsaid tong line i at a plurality of: points when said connected together sheaves are moved toward said -45 In apparatus ofi the class described,

necteda together and mounted in said frame,

carriagehaving a sheave frame pivotally con 7 i nected therewith, two coaxial sheaves conl 1 y a tongxlme lead ng over one ofsa d sheaves," a slack: pullinglineleadnigpunder and around said otherfsheavala third sheave journaledfiii saidcarriageinahigherplane'thanthepivot 1 of said sheave frame 'and over which said-h 1 slack pulling line leads whereby a pull on such slacklpulling line will turn the sheave frame on its pivot to'raiseithe sheaves carriedthereby, a hauling lineswith which both the I tong linexandthe slackpulling lineare COD-1 nectedat a comparatively short distance from the carriage, and means renderedoperative bytension on theslackpullingline forpressa ing against; said tongline when said sheave V -5. In apparatus oftheclass described, a; carriage havlng a sheave frame. plvotallygconnectedtherewitlnftwo coaxial sheaves connectedatogether and mounted: in; said frame,

a tongiline leading over one i of said 'sheavea;

the carriage, and a movable member supsaid slack pulling line leads whereby a pull on such slack pulling line will turn the sheave frame on its pivot to raise. the sheaves carried thereby, a hauling line with which both the tong line and the slack pulling line are connected at a comparatively short distance from ported by the carriage adapted to be contacted by the tong line when said sheave frame is in raised position.

6. In apparatus of the class described, a carriage having a sheave frame pivotally connected therewith, two coaxial sheaves connected together and mounted in said frame, a tong line leading over one of said sheaves, a slackpulling line leading under and around said other sheave, a third sheave journaled in said carriage in a higher plane than the pivot of said sheave frame and over which said slack pulling line leads whereby a pull on such slack pulling line will turn the sheave frame on its pivot to raise the sheaves carried thereby, a hauling line with which both the tong line and the slack pulling line are connected at a comparatively short distance from the carria e, a pivotally-mounted block supported by the carriage, and means mounted in said block for contacting said tong line at a plurality of points when said sheave frame is in raised position.

7. In apparatus of the class described, a carriage having a sheave frame pivotally connected therewith, two coaxial sheaves connected together and mounted in said frame, a tong line leading over one of said sheaves, a slack pulling line leading under and around said other sheave, a third sheave ournaled in said carriage in a higher plane than the pivot of said sheave frame and over which said slack pulling line leads whereby a pull on such slack pulling line will turn the sheave frame on its pivot to raise the sheaves carried thereby, a hauling line with which both the tong line and the slack pulling line are connected at a comparatively short distance from the carriage, a plurality of alined rollers located over said tong line and adapted to contact such line when said sheave frame is in its raised position.

8. In apparatus of the class described, a carriage having asheave frame pivotally connected therewith, two coaxial sheaves connected together and mounted in said frame, a tong line leading over one of said sheaves, a slack pulling line leading under and around said other sheave, a third sheave journaled in said carriage in a higher plane than the pivot of said sheave frame and over which said slack pulling line leads whereby a pull on such slack pulling line will turn the sheave frame on its pivot to raise the sheaves carried signature.

KNUTE BERGER. 

